Population dynamics and secondary production in Melinna palmata (Polychaeta: Ampharetidae) |
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Authors: | J A Oyenekan |
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Institution: | (1) Department of Biological Sciences, University of Lagos, Lagos, Nigeria |
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Abstract: | A Southampton Water (England) population of Melinna palmata Malmgren was studied from July 1978 to March 1980. M. palmata is a gregarious sedentary polychaete living in muddy substratum. The distribution of the polychaete in Southampton Water was related to the silt content of the sediment. The species occurs in sediments of <60% silt, it is dioecious, and the gametes are shed during a prolonged breeding season throughout the year, with peaks in March and July. Mature oocytes measure between 180 and 240 m in diameter at spawning, and fertilization is external. Unshed oocytes are resorbed. Annual secondary ary production was 0.42 gC m–2yr–1 and the P:B ratio was 2.19. |
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